OLT-12.1 REPRODUCTION IN ORGANISMS

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This is an online test designed to check your grasp on the chapter Reproduction in Organisms.
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Designed by Miss Shalini Bhandari, PGT (BIOLOGY), K V PARADIP PORT, Bhubhaneswar Region

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Name of the Student (in Capital Letters) *

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Q1.Tuber is a vegetative propagule in *

2 points

Potato

Water hyacinth

Bryophyllum

Ginger

Clear selection

Q2.Monoecious plant of Chara shows occurrence of

2 points

stamen and carpel of the same plant

upper antheridium and lower oogonium on the sameplant

upper oogonium and lower antheridium on the sameplant

antheridiophore and archegoniophore on the samePlant

Clear selection

Q3. Find the incorrect statement *

2 points

unisexual male flowers are staminate

both male and female flowers on the same plant is called dioecious condition

homothallism and monoecious means the same

heterothallism and dioecious are used to describe unisexuality

Q4. Syngamy can occur outside the body of the organism in *

2 points

Fungi

Mosses

Algae

Ferns

Q5. Select the correct sequence from the following. *

2 points

Juvenile phase 􀁯 Senescent phase 􀁯 Reproductive phase

Juvenile phase 􀁯 Reproductive phase 􀁯 Senescent phase

Reproductive phase 􀁯 Juvenile phase 􀁯 Senescent phase

Vegetative phase 􀁯 Senescent phase􀁯 Reproductive phase

Option 5

Q6. In mammals that are seasonal breeders, females are receptive only once a year. This is called *

2 points

follicular cycle

estrous cycle

menstrual cycle

luteal cycle

Q7. Bamboo species flowers * *

2 points

only once in lifetime

once in 12 years

every year

None of these

Q8. Which of the following pair is not correctly matched? *

2 points

fission – bacteria

budding – algae

gemmule – sponge

conidia – fungi

Q9. Meiosis is best observed in dividing

2 points

microspores and anther wall

meiocytes

cells of lateral meristem

cells of apical meristem

Clear selection

Q10. Ploidy of ovary, anther, egg, pollen, male gamete and zygote are respectively *

2 points

2n, 2n, n, 2n, n, 2n

2n, 2n, n, n, n, 2n

2n, n, n, n, n, n

2n, 2n, n, 2n, 2n, 2n

Q 11.Plants identical to mother plants can be obtained from *

2 points

seeds

stem cutting

Both (a) and (b)

None of these

Q12. If the leaf of maize plant have 20 chromosomes, the microspore mother cell will have

2 points

10 chromosome

20 chromosome

30 chromosome

40 chromosome

Clear selection

Q13. A population of genetically and morphologically identical individuals, obtained from asexual reproduction is *

2 points

Callus

propagule

Aggregate

CLONE

Q14. In homey bees ,development of an organism from female gamete/egg without involving fertilization is *

2 points

Parthenocarpy

Adventitive embryony

Parthenogenesis

Polyembryony

Q15. Name the type of vegetative propagule found in the plant given below *

2 points

Offset

rhizome

tuber

axillary buds

Q16. Which of the following is not vegetative propagule ? *

2 points

Rhizome and sucker

Tuber and offset

Bulbil (e.g. in Agave), leaf buds and bulb

Antherozoid

Q17. Which of the following are seasonal breeders? *

2 points

Frogs

Birds

Lizards

All of these

Q18. Identify the plant from the photograph given below *

2 points

Water Hyacinth

Banana

Bryophyllum

Dahlia

Q20.Identify the correct sequence of events *

2 points

Gametogenesis → Syngamy → Embryogenesis → Zygote

Gametogenesis → Zygote → Syngamy → Embryogenesis

Gametogenesis → Embryogenesis → Zygote → Syngamy

Gametogenesis → Syngamy → Zygote → Embryogenesis

Q20. Name the type of asexual reproduction shown in the figure below. *

2 points

Budding

Fission

Fragmentation

Sporulation

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